Bearing with distance sensors and tapered groove

A bearing comprising:

• a first ring and a second ring capable of rotating concentrically relative to one another, at least one tapered groove is formed on a first axial cylindrical surface of the second ring and oriented towards the first ring,
• at least one first distance sensor mounted on the first ring and facing a tapered wall of the tapered groove of the second ring which is inclined with respect to the axis of the bearing, a longitudinal axis of the first distance sensor being perpendicular to the axis,
• at least one second distance sensor mounted on the first ring and distinct from the first distance sensor, the second distance sensor radially facing a second axial cylindrical surface of the second ring, and
• a control unit connected to the first and second distance sensors and adapted to calculate the value of a relative axial displacement between the first and second rings on the basis of the formula:
• Da
• ⁢
• =
• (
• Δ
• ⁢
• M
• -
• D
• ⁢
• r
• sin
• ⁢
• α
• )
• ,
• where
• ΔM is the value of the differential measurement of the first distance sensor on the tapered wall of the second ring,
• Dr is the value of a relative radial displacement between the first and second rings detected by the second distance sensor, and
• α is the value of the angle formed between the tapered wall of the tapered groove and the first axial cylindrical surface of the second ring in a radial plane of the bearing.